From 313ca53b368abf376d3207b32fb9c8fd4291965f Mon Sep 17 00:00:00 2001 From: Muhammad Rifqi Priyo Susanto Date: Sat, 3 Jun 2017 09:51:48 +0700 Subject: [PATCH] Fix issue Minetest crash when custom font path is not exist We try to use default fallback for both mono and main font when custom font path is not exist. This way, if Minetest is not corrupted, we could avoid crash. --- src/fontengine.cpp | 68 ++++++++++++++++++++++++++++++++++++---------- src/settings.cpp | 43 +++++++++++++++++++++++++++++ src/settings.h | 4 +++ 3 files changed, 100 insertions(+), 15 deletions(-) diff --git a/src/fontengine.cpp b/src/fontengine.cpp index da327c3f6..8eaf53c9f 100644 --- a/src/fontengine.cpp +++ b/src/fontengine.cpp @@ -341,32 +341,70 @@ void FontEngine::initFont(unsigned int basesize, FontMode mode) font_path.c_str(), size, true, true, font_shadow, font_shadow_alpha); - if (font != NULL) { + if (font) { m_font_cache[mode][basesize] = font; return; } - // try fallback font - errorstream << "FontEngine: failed to load: " << font_path << ", trying to fall back " - "to fallback font" << std::endl; + if (font_config_prefix == "mono_") { + const std::string &mono_font_path = m_settings->getDefault("mono_font_path"); - font_path = g_settings->get(font_config_prefix + "fallback_font_path"); + if (font_path != mono_font_path) { + // try original mono font + errorstream << "FontEngine: failed to load custom mono " + "font: " << font_path << ", trying to fall back to " + "original mono font" << std::endl; - font = gui::CGUITTFont::createTTFont(m_env, - font_path.c_str(), size, true, true, font_shadow, - font_shadow_alpha); + font = gui::CGUITTFont::createTTFont(m_env, + mono_font_path.c_str(), size, true, true, + font_shadow, font_shadow_alpha); - if (font != NULL) { - m_font_cache[mode][basesize] = font; - return; + if (font) { + m_font_cache[mode][basesize] = font; + return; + } + } + } else { + // try fallback font + errorstream << "FontEngine: failed to load: " << font_path << + ", trying to fall back to fallback font" << std::endl; + + font_path = g_settings->get(font_config_prefix + "fallback_font_path"); + + font = gui::CGUITTFont::createTTFont(m_env, + font_path.c_str(), size, true, true, font_shadow, + font_shadow_alpha); + + if (font) { + m_font_cache[mode][basesize] = font; + return; + } + + const std::string &fallback_font_path = m_settings->getDefault("fallback_font_path"); + + if (font_path != fallback_font_path) { + // try original fallback font + errorstream << "FontEngine: failed to load custom fallback " + "font: " << font_path << ", trying to fall back to " + "original fallback font" << std::endl; + + font = gui::CGUITTFont::createTTFont(m_env, + fallback_font_path.c_str(), size, true, true, + font_shadow, font_shadow_alpha); + + if (font) { + m_font_cache[mode][basesize] = font; + return; + } + } } // give up errorstream << "FontEngine: failed to load freetype font: " << font_path << std::endl; - errorstream << "minetest can not continue without a valid font. Please correct " - "the 'font_path' setting or install the font file in the proper " - "location" << std::endl; + errorstream << "minetest can not continue without a valid font. " + "Please correct the 'font_path' setting or install the font " + "file in the proper location" << std::endl; abort(); } #endif @@ -468,7 +506,7 @@ void FontEngine::initSimpleFont(unsigned int basesize, FontMode mode) } } - if (font != NULL) { + if (font) { font->grab(); m_font_cache[mode][basesize] = font; } diff --git a/src/settings.cpp b/src/settings.cpp index b4083264e..61f35e911 100644 --- a/src/settings.cpp +++ b/src/settings.cpp @@ -362,6 +362,18 @@ const SettingsEntry &Settings::getEntry(const std::string &name) const } +const SettingsEntry &Settings::getEntryDefault(const std::string &name) const +{ + MutexAutoLock lock(m_mutex); + + SettingEntries::const_iterator n; + if ((n = m_defaults.find(name)) == m_defaults.end()) { + throw SettingNotFoundException("Setting [" + name + "] not found."); + } + return n->second; +} + + Settings *Settings::getGroup(const std::string &name) const { const SettingsEntry &entry = getEntry(name); @@ -380,6 +392,15 @@ const std::string &Settings::get(const std::string &name) const } +const std::string &Settings::getDefault(const std::string &name) const +{ + const SettingsEntry &entry = getEntryDefault(name); + if (entry.is_group) + throw SettingNotFoundException("Setting [" + name + "] is a group."); + return entry.value; +} + + bool Settings::getBool(const std::string &name) const { return is_yes(get(name)); @@ -568,6 +589,17 @@ bool Settings::getEntryNoEx(const std::string &name, SettingsEntry &val) const } +bool Settings::getEntryDefaultNoEx(const std::string &name, SettingsEntry &val) const +{ + try { + val = getEntryDefault(name); + return true; + } catch (SettingNotFoundException &e) { + return false; + } +} + + bool Settings::getGroupNoEx(const std::string &name, Settings *&val) const { try { @@ -590,6 +622,17 @@ bool Settings::getNoEx(const std::string &name, std::string &val) const } +bool Settings::getDefaultNoEx(const std::string &name, std::string &val) const +{ + try { + val = getDefault(name); + return true; + } catch (SettingNotFoundException &e) { + return false; + } +} + + bool Settings::getFlag(const std::string &name) const { try { diff --git a/src/settings.h b/src/settings.h index 8c4f6e559..a19c15a76 100644 --- a/src/settings.h +++ b/src/settings.h @@ -135,8 +135,10 @@ public: ***********/ const SettingsEntry &getEntry(const std::string &name) const; + const SettingsEntry &getEntryDefault(const std::string &name) const; Settings *getGroup(const std::string &name) const; const std::string &get(const std::string &name) const; + const std::string &getDefault(const std::string &name) const; bool getBool(const std::string &name) const; u16 getU16(const std::string &name) const; s16 getS16(const std::string &name) const; @@ -165,8 +167,10 @@ public: ***************************************/ bool getEntryNoEx(const std::string &name, SettingsEntry &val) const; + bool getEntryDefaultNoEx(const std::string &name, SettingsEntry &val) const; bool getGroupNoEx(const std::string &name, Settings *&val) const; bool getNoEx(const std::string &name, std::string &val) const; + bool getDefaultNoEx(const std::string &name, std::string &val) const; bool getFlag(const std::string &name) const; bool getU16NoEx(const std::string &name, u16 &val) const; bool getS16NoEx(const std::string &name, s16 &val) const; -- 2.25.1